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(Article of periodic en Anglais - 1993)

Document title

Pedogenic uranium/thorium and thermoluminescence chronologies and evolutionary history of a coastal dunefield, Groote Eylandt, northern Australia

Authors(s) and Affiliation(s)

SHULMEISTER J. ;

Abstract

U/Th disequilibrium dating of pedogenic ferruginous pisoliths and additional coarse fraction quartz thermolulinescence dates are used to test a TL-based chronology of the Umbakumba Dunefield, Groote Eylandt. These dates support the established history of the dunefield and indicate that the field is at least mid-Quaternary in age and may be much older. Sea-level fluctuation is identified as the dominant control on dunefield accretion and destruction. A model of sea-level control of dunefield evolution is proposed. Modified versions of the conceptual model may be applicable to other coastlines where sediment supply is significantly

Source

Article of periodic

published at : Geomorphology / ISSN 0169-555X

Editor : Elsevier, Amsterdam - PAYS-BAS (1987)

Millesime : 1993, vol. 8, no1 [pp. 47-64]

Bibliographic references : 39 réf.

Collation : Illustration ;

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1994.
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